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How can one fully harness the power of physics encoded in relativistic $N$-body phase space? Topologically, phase space is isomorphic to the product space of a simplex and a hypersphere and can be equipped with explicit coordinates and a…

高能物理 - 唯象学 · 物理学 2024-08-26 Tianji Cai , Junyi Cheng , Nathaniel Craig , Giacomo Koszegi , Andrew J. Larkoski

Spatial systems with heterogeneities are ubiquitous in nature, from precipitation, temperature and soil gradients controlling vegetation growth to morphogen gradients controlling gene expression in embryos. Such systems, generally described…

动力系统 · 数学 2023-05-10 Denis D. Patterson , Simon A. Levin , A. Carla Staver , Jonathan D. Touboul

Humans are often incapable of precisely identifying and implementing the desired control strategy in controlling unstable dynamical systems. That is, the operator of a dynamical system treats the current control effort as acceptable even if…

适应与自组织系统 · 物理学 2016-06-21 Arkady Zgonnikov , Ihor Lubashevsky

The article continues the author's publication in [Mech. Tverd. Tela, No. 35, 2005 and No. 38, 2008], in which we investigate the integrable dynamical system induced on one four-dimensional submanifold of the phase space of the problem of a…

可精确求解与可积系统 · 物理学 2013-09-30 Mikhail P. Kharlamov

Dynamical systems methods are used to investigate global behavior of the spatially flat Friedmann-Robertson-Walker cosmological model in gravitational theory with a non-minimally coupled scalar field and a constant potential function. We…

广义相对论与量子宇宙学 · 物理学 2015-11-11 Orest Hrycyna , Marek Szydlowski

Discontinuous dynamical systems with grazing solutions are discussed. The group property, continuation of solutions, continuity and smoothness of motions are thoroughly analyzed. A variational system around a grazing solution which depends…

动力系统 · 数学 2016-04-20 Marat Akhmet , Aysegul Kivilcim

Clustering $\unicode{x2013}$ the tendency for neighbors of nodes to be connected $\unicode{x2013}$ quantifies the coupling of a complex network to its latent metric space. In random geometric graphs, clustering undergoes a continuous phase…

物理与社会 · 物理学 2022-11-22 Jasper van der Kolk , M. Ángeles Serrano , Marián Boguñá

Recurrence in the phase space of complex systems is a well-studied phenomenon, which has provided deep insights into the nonlinear dynamics of such systems. For dissipative systems, characteristics based on recurrence plots have recently…

混沌动力学 · 物理学 2016-03-22 Yong Zou , Reik V. Donner , Marco Thiel , Jürgen Kurths

In this letter we consider the phase diffusion of a harmonically driven undamped pendulum and show that it is anomalous in the strong sense. The role played by the fractal properties of the phase space is highlighted, providing an…

混沌动力学 · 物理学 2015-07-20 Francesco Cagnetta , Giuseppe Gonnella , Alessandro Mossa , Stefano Ruffo

For spatiotemporal chaos described by partial differential equations, there are generally locations where the dynamical variable achieves its local extremum or where the time partial derivative of the variable vanishes instantaneously. To a…

混沌动力学 · 物理学 2013-03-07 Quntao Zhuang , Xun Gao , Qi Ouyang , Hongli Wang

An interface description and numerical simulations of model A kinetics are used for the first time to investigate the intra-surface kinetics of phase ordering on corrugated surfaces. Geometrical dynamical equations are derived for the…

统计力学 · 物理学 2015-06-25 Oliver Schoenborn , Rashmi C. Desai

Many examples from quantum and classical physics are known where topological protection is responsible for the robustness of the dynamics. Less explored is the role of topological protection in the context of classical oscillatory systems.…

适应与自组织系统 · 物理学 2025-08-07 Sayantan Nag Chowdhury , Hildegard Meyer-Ortmanns

In this paper, we present a rigorous analysis of symmetry and underlying physics of the nonlinear two-mode system driven by a harmonic mixing field, by means of multiple scale asymptotic analysis method. The effective description in the…

All systems in thermal equilibrium exhibit a spatially variable energy landscape due to thermal fluctuations. Thus at any instant there is naturally a thermodynamically driven localization of energy in parts of the system relative to other…

统计力学 · 物理学 2009-10-31 R. Reigada , A. H. Romero , A. Sarmiento , K. Lindenberg

The content of this contribution is based on the course on numerical analysis techniques for non-linear dynamics. After introducing basic concepts as the visual analysis of trajectories in phase space and the importance of the nature of…

加速器物理 · 物理学 2020-12-22 Yannis Papaphilippou

We study the dynamical properties of the ordered phases obtained in a coupled nonequilibrium system describing advection of two species of particles by a stochastically evolving landscape. The local dynamics of the landscape also gets…

统计力学 · 物理学 2017-08-23 Shauri Chakraborty , Sakuntala Chatterjee , Mustansir Barma

We study dynamics in a neighborhood of a nonhyperbolic fixed point or an irreducible homoclinic tangent point. General type conditions for the existence of infinite sets of periodic points are obtained. A new method, based on the study of…

动力系统 · 数学 2011-12-20 Sergey Kryzhevich , Sergei Pilyugin

We study the semiclassical limit of the anisotropic two-photon Dicke model with a dissipative bosonic field and describe its rich nonlinear dynamics. Besides normal and 'superradiant'-like phases, the presence of localized fixed points…

量子物理 · 物理学 2022-09-07 Jiahui Li , Rosario Fazio , Stefano Chesi

This article is devoted to a description of the dynamics of the phase flow of monotone contact Hamiltonian systems. Particular attention is paid to locating the maximal attractor (or repeller), which could be seen as the union of compact…

动力系统 · 数学 2021-07-07 Liang Jin , Jun Yan

Large amplitude gust encounters exhibit a range of separated flow phenomena, making them difficult to characterize using the traditional tools of aerodynamics. In this work, we propose a dynamical systems approach to gust encounters,…

流体动力学 · 物理学 2024-11-20 Luke Smith , Kai Fukami , Girguis Sedky , Anya Jones , Kunihiko Taira